Yeah, I've done some research too; the first year we were here (6 years ago) there were more lightning bugs than I've ever seen, and they were mainly up higher off the ground, up around the top 1/3 of the trees. Looked like hundreds of Christmas tree lights, amazing. So the next year we were all ready and there was no big show . Then the year after a nice turnout again, but at lower altitudes, which was also an awesome look. So we thought okay, maybe it's an every other year kind of deal. But in actuality not so much. Now we just take it as it comes, kind of like hoping for a snowy winter but you never know. We actually planted a row of bushes along one side in the back to block the light from our neighbor's light post that is on all night, lol. It will take a few more years for the bushes to get high enough, but we try :-). Light pollution is not good for the population since it gets in the way of mating (which is what the flashing is about). Good stuff!